Support for Synchronized Charts

[heinemannj]

ApexCharts.js supports having multiple charts which support a common and synchronized x-axis:
https://apexcharts.com/docs/chart-types/synchronized-charts/

Would it be possible to support this in this card as well?

It would be very useful to have separate graphs for certain data with completely independent y-axes and to be able to display the data in a stacked fashion so that the graphs don't overlap, but still be able to synchronize the viewing of the values at any given point.

Today you can create multiple instances of the card and stack them in a vertical stack card, but the result is not very compact and there is no synchronization between them.

Please see discussion: #513